that day saw me toiling for 6 hours, inviting loads of troubles, collecting 57 cigarette-ends,savoring hundreds of potential second hand smokers and developing for myself some sense of responsibility toward society.

　　though it was a little depressing to realize that those people would naturally pick up their "tradition" just where they had temporarily laid it down, yet how far can we estimate our actions would travel! and besides that, i was rewarded in another day.that is, the experience dawned upon me the significance of care and consideration for other people. since then, i have been as cooperative as possible whenever i am asked to improve my public behavior and i am always ready to get involved in such volunteer work.

　　in a sense, the highest reward for ones toil is not what they get from it but what they become by it.